void do_tests()
{
#ifndef __OLD_ED__
	ASSERT(
	catch(ed_cmd("foo")));
	rm("/ed_test");
	write_file("/ed_test", "xyzzy\nxxx");
	ed_start("/ed_test");
	ASSERT(ed_cmd("1s/y/a/g"));
	ASSERT(ed_cmd("2s!x!b!"));
	ASSERT(
	catch(ed_start("foo")));
	ASSERT(ed_cmd("x"));
	ASSERT(read_file("/ed_test") == "xazza\nbxx\n");
#endif
}
